Sash-lock.



J. A. GIESE. SASH Loom. APPLICATION FILED NOV. 28, 1913.

1,125,51 1. Patented Jan.19,1915.

UNITED STATES PATENT (EFFTCE.

JAMES A. GIESE, 0F CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS & WESTLAKE COMPANY OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SASI'I-LOCK.

' Specification of Letters Patent.

Patented Jan. 19, 1915.

Application filed November 28, 1913. Serial No. 803,542.

To all whom it may concern:

Be it known that 1, JAMES A. GIEsE, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to locks for window sashes, more specifically to locks controllable by means of a single finger piece movable in opposite directions for withdrawing the bolt.

It consists of a structure such as hereinafter described and as illustrated in the accompanying drawings, in which Figure 1 is a detail elevation of a window with the improved lock applied thereto; Fig. 2 is an inside elevation of a bolt c0ntrolling mechanism showing the bolt in advanced position, and Fig. 3 is a similar view showing the bolt withdrawn.

A window sash is represented at 10. Its locking bolt, 11, is slidably mounted within a bottom rail 12, of the sash, and is controlled by a reciprocable finger piece 13 mounted within a face plate 14, adapted to be secured within a recess in the sash rail.

The inner end of the bolt 11 is provided with a lateral lug 15 which is engaged by one of the arms 16, 17, of each of a pair of bell cranks which are pivoted respectively at 18, 19 upon the plate 14. A spring 20, urges the bolt outwardly.

The free arms 21, 22, of the bell crank extend backwardly and are substantially parallel. The finger piece, 13, is housed Within a well in the outer face of the plate 14 and is provided with a stud, 23, projecting through an aperture 27 in the plate and located between the free arms 21, 22, of the bell cranks. A guide rod, 24, extends through the stud, 23, at the inside of the plate 14, and is slidable through a pair of lugs, 25, 26, formed upon the inner surface of the plate.

The outward movement of the bolt under the influence of the spring, 20, rocks the bell cranks on their pivots, bringing their free arms into engagement with the stud, 23, and

moving it and the finger piece to central position.

Lateral pressure upon the finger piece in either direction will rock one of the bell cranks on its pivot and withdraw the bolt.

The finger piece is of considerable length, affording ample space for pressure by several of the fingers of the user and is held against angular movement by the guide rod 24, even though the pressure may be applied at one of its ends.

I claim as my invention- A slotted face plate, a spring advanced reciprocable bolt, a pair of bell cranks pivotally mounted on the inner surface of the plate and each having one arm engageable with the bolt, a reciprocable finger piece movable over the outer face of the plate and having a stud projecting through the slot of the plate and located between the free arms of the bell cranks and a guide rod fixed to the stud and reciprocable through lugs formed on the inner face of the plate.

JAMES A. GIESE. l/Vitnessesz \V. S. HAMM, E. ANDREWS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

